En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Monday - July 05, 2010

From: Lubbock, TX
Region: Southwest
Topic: Non-Natives
Title: Does non-native mimosa tree have a tap root from Lubbock TX?
Answered by: Barbara Medford

QUESTION:

Does a mimosa tree have a tap root? I would like to plant one next to a concrete driveway to help shade the garage and do not want to cause damage to the driveway in the future. Thank you in advance for your expertise.

ANSWER:

The Lady Bird Johnson Wildflower Center is dedicated to the growth, protection and propagation of plants native not only to North America but to the areas in which those plants are being grown. Albizia julibrissin, Mimosa or Silk Tree, is native to China and therefore out of our range of expertise. Read this article from the Plant Conservation Alliance's Alien Plant Working Group LEAST WANTED on the Mimosa or Silk Tree to learn why we do not recommend it, regardless of what kind of root it has.

You might also be interested in reading this Dave's Garden Forum page on Albizia julibrissin, especially the MANY negative comments. 

There are few trees with a true taproot; they may begin with one, but as time goes by roots will spread from that center root, both in search of water and nutrients and also as a base to stabilize the tree in the ground. From this USDA Forest Service site Mimosa, we extracted these two sentences apropos of your question:

"Breakage: susceptible to breakage either at the crotch due to poor collar formation, or the wood itself is weak and tends to break."

"Roots: surface roots can lift sidewalks or interfere with mowing."

Honestly, most trees will interfere with foundations, sidewalks or driveways if planted too close, regardless of the type of root. Do your research on trees native to your area by going to our Recommended Species, clicking on Texas High Plains on the map, and Narrow Your Search to trees, and indicate the amount of light needed, moisture, etc.  You can follow the plant links to the page on each tree to learn the projected size of that tree. Generally speaking, a tree root system can be from 2 to 4 times the size of the crown of the tree, so consider that when you decide where to plant a tree. 

 

 

 

More Non-Natives Questions

Cuttings from non-native weeping willow in California
October 01, 2008 - I have a large area to plant, I have a flourishing Weeping Willow and would like to harvest cuttings from it to start new trees. What is the best time of year for this in Central California?
view the full question and answer

How many Bamboo species are native to North Carolina? one
March 27, 2014 - I would like to know how many bamboo plants are native to North Carolina?
view the full question and answer

Water requirements for fruit trees in California
January 15, 2013 - Dear Sir; In which of these options (fruit trees) the need for watering in irrigation process is higher than the others: -Olive tree -Nectarines and peaches trees -Hazelnut trees -Pistachios and ...
view the full question and answer

Non-native Ruda plant drying up in Florida
February 19, 2009 - I have a RUDA plant at work, but do not know if I am putting too much water on it, it is about 1 meter high but I think is drying up. How often do I water it? I'm in Miami Fl. Thank you.
view the full question and answer

Need some help with a Plumbago plant in Mission, TX.
August 06, 2010 - Hello..I live in south South Texas and have a plumbago. It gets about 4 to 5 hours of direct sun and lately some of the branches and leaves turn bright green almost yellow. Am I over watering or is ...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center